Trajectories of sleep problems among adolescents after the Wenchuan earthquake: the role of posttraumatic stress disorder symptoms

Objective: We examined the trajectories of sleep problems in adolescents after the Wenchuan earthquake, and assessed predictors such as posttraumatic stress disorder symptoms. Methods: We surveyed adolescents at 1, 1.5, 2, and 2.5 years after the Wenchuan earthquake. In total, 391 adolescents completed self-report questionnaires. Results: We identified five latent sleep problem trajectories, specifically, U-shaped (3.8%), low-stable (68.0%), high-stable (10.8%), increasing (8.7%), and decreasing (8.7%) trajectories. Additionally, we found that posttraumatic stress disorder hyper-arousal symptoms were more frequent in individuals who had non-low-stable trajectories. Adolescents in the U-shaped group were less likely to have intrusive symptoms. Conclusion: After natural disasters, consequent sleep problems in adolescents do not remain stable over time, and sleep problem trajectories had considerable heterogeneity.     

认知还是元认知：口语产生中舌尖效应的心理机制

舌尖效应(Tip-of-the-tongue, TOT)在口语产生领域存在认知和元认知两种研究视角。认知视角主要针对口语产生的词汇通达过程, 认为信息激活或提取不充分是TOT发生的主要原因。元认知视角则主要关注口语产生的元认知过程, 认为个体对目标词提取状态的监测引发了TOT。TOT的元认知过程不仅可以监测目标词的提取状态及词汇通达过程中相关信息的提取, 而且可以控制词汇通达过程, 使目标词在TOT发生后成功地提取出来。两种研究视角在TOT发生的认知机制、影响因素以及生理基础方面均存在分离。未来研究应该探讨TOT监测和控制口语产生的作用机制和生理基础, 关注汉语背景下TOT发生规律及其对口语产生年老化的积极影响。     

评论效价、新产品类型与调节定向对在线评论有用性的影响

对于新产品推出的成功与否, 较早采用者的评论和建议的影响相当巨大, 本研究通过两个实验研究评论效价(正面评论/负面评论)、新产品类型(渐进性新产品/革新性新产品)和调节定向(促进定向/防御定向)对新产品在线评论有用性的影响。实验1设计为2(新产品类型：渐进性新产品/革新性新产品)×2(评论效价：正面/负面)的组间操控设计, 结果表明：相对于渐进性新产品, 负面评论对革新性新产品的有用性更高, 正面评论对渐进性新产品和革新性新产品的有用性差异不显著。实验2设计为2(新产品类型：渐进性新产品/革新性新产品)×2(评论效价：正面/负面)×2(调节定向：促进/防御)的组间操控设计, 结果表明：促进定向的个体认为正负面评论有用性差异不大, 而防御定向的个体认为负面评论有用性显著高于正面评论; 对于促进定向的个体来说, 新产品类型对于评论效价对评论有用性的影响有调节作用, 而对于防御定向的个体来说, 新产品类型的这种调节作用则不存在。     

教师情绪智力和工作绩效的关系：工作家庭促进和主动行为的中介作用

采用整群抽样法对630名中小学教师进行调查,考察教师情绪智力与工作绩效之间的关系,以及工作家庭促进和主动行为在其中的中介作用。结果发现：（1）教师情绪智力、工作促进家庭、家庭促进工作和主动行为与工作绩效呈显著正相关;（2）教师情绪智力对工作绩效具有直接的正向预测作用,同时还通过家庭促进工作和主动行为的多重中介作用对工作绩效产生影响;（3）高低情绪智力对工作绩效的影响机制不同,低情绪智力通过家庭促进工作的部分中介作用影响教师工作绩效,高情绪智力通过家庭促进工作和主动行为的完全多重中介作用影响教师工作绩效;（4）工作家庭促进中工作促进家庭维度在教师情绪智力影响工作绩效中没有显著中介作用。     

自我姓名加工的相对独特性：来自RSVP的证据

研究采用注意瞬脱的双任务RSVP范式通过操纵T1任务知觉负载水平的高低及T1-T2间的延迟长短,检验不同负载和延迟条件被试对陌生姓名、明星姓名和自我姓名的识别正确率。研究发现,自我姓名加工具有明显的注意瞬脱对抗效应,体现出加工的独特性,但其独特性受负载及延迟条件的影响,且明星姓名在一定条件下也出现了与之相近注意瞬脱的对抗效应,证明自我姓名加工具有相对的独特性。     

韩-汉跨语言词义水平的重复知盲效应*

关于语义水平的重复知盲效应一直存在争论。本研究考察非平衡韩-汉双语者在语言内和语言间词义水平的RB效应。实验1采用韩语双字词为实验材料探究韩语语言内的RB效应,结果表明在韩语词汇水平存在RB效应。实验2采用两个关键词为韩语（R1）和汉语（R2）双字词,并通过韩-汉语间隔词W的语言类型变化探究韩、汉语言间的RB效应,结果表明：不同语言类型的间隔词的正确率有显著差异,语义重复词R2在重复条件的正确率显著高于非重复条件,出现语义重复启动效应。本研究结论是：（1）在韩语语言内词水平存在RB效应,具有语言类型普遍性;（2）韩、汉跨语言语义水平出现语义重复启动效应,而未发生RB效应,表明双语者在加工韩、汉两种语言时,采用分别形式表征和共享语义表征的方式。     

青少年的乐观与创伤后成长的关系:希望与反刍的中介作用

采用创伤暴露程度问卷、乐观问卷、希望问卷、反刍问卷和创伤后成长问卷,以雅安地震2.5年后的416名中学生为被试,考察其乐观、希望、反刍与创伤后成长（PTG）之间的关系。结果发现,在控制创伤暴露程度后,雅安地震2.5年后青少年的乐观可以直接正向预测PTG,也可以经过希望来间接地正向预测PTG,还可以通过希望经主动反刍的多重中介来正向预测PTG;甚至乐观还可以通过侵入性反刍经主动反刍间接地负向预测PTG,但预测作用远小于乐观对PTG的促进作用;乐观通过希望不能经侵入性反刍对PTG发挥显著的直接和间接预测作用,且乐观还不能直接通过主动反刍促进PTG。     

Bilingualism alters children's frontal lobe functioning for attentional control

Bilingualism is a typical linguistic experience, yet relatively little is known about its impact on children's cognitive and brain development. Theories of bilingualism suggest that early dual‐language acquisition can improve children's cognitive abilities, specifically those relying on frontal lobe functioning. While behavioral findings present much conflicting evidence, little is known about its effects on children's frontal lobe development. Using functional near‐infrared spectroscopy (fNIRS), the findings suggest that Spanish–English bilingual children (n = 13, ages 7–13) had greater activation in left prefrontal cortex during a non‐verbal attentional control task relative to age‐matched English monolinguals. In contrast, monolinguals (n = 14) showed greater right prefrontal activation than bilinguals. The present findings suggest that early bilingualism yields significant changes to the functional organization of children's prefrontal cortex for attentional control and carry implications for understanding how early life experiences impact cognition and brain development.     

Reference directions and reference objects in spatial memory of a briefly viewed layout

Two experiments investigated participants' spatial memory of a briefly viewed layout. Participants saw an array of five objects on a table and, after a short delay, indicated whether the target object indicated by the experimenter had been moved. Experiment 1 showed that change detection was more accurate when non-target objects were stationary than when non-target objects were moved. This context effect was observed when participants were tested both at the original learning perspective and at a novel perspective. In Experiment 2, the arrays of five objects were presented on a rectangular table and two of the non-target objects were aligned with the longer axis of the table. Change detection was more accurate when the target object was presented with the two objects that were aligned with the longer axis of the table during learning than when the target object was presented with the two objects that were not aligned with the longer axis of the table during learning. These results indicated that the spatial memory of a briefly viewed layout has interobject spatial relations represented and utilizes an allocentric reference direction.     

试论网络视域中的宗教传播——以佛教网站为例

本文以佛教网站为例讨论网络视域中的宗教传播.认为佛教网站就是有独立域名、独立服务器、独立IP地址或虚拟主机的以传播、交流、弘扬佛教教义、佛教文化、佛教精神为主旨的网站;而且,现有的佛教网站,虽然主体上多属宗教的网络化,但其局部也正在具有在线宗教的某些特质.以此,作为网络传播之主体的网站主办者便应以最大化宗教的积极功能为第一要务.